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Evaluation of FY-3/VIRR Sea Surface Temperature Data for Climate Applications

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Journal of Meteorological Research 2021年第6期35卷 952-963页

作者： Yunyun LIU sujuan wang Jian LIU Zhensong GONG Xiaolong JIA Laboratory of Climate Studies National Climate CenterChina Meteorological AdministrationBeijing 100081 Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjing 210044 National Satellite Meteorological Center China Meteorological AdministrationBeijing 100081 Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites National Satellite Meteorological CenterChina Meteorological AdministrationBeijing 100081

We evaluated the sea surface temperature(SST)products derived from the visible infrared radiometer on board the Fengyun-3 satellites(FY-3/VIRR)during 2016-2018 from the perspective of climate *** data had previously been reprocessed by the National Satellite Meteorological Center of China Meteorological Administration based on an updated SST retrieval *** overall consistency between the FY-3/VIRR SST data and the optimum interpolation SST version 2.1(OIv2.1)was better for monthly means than for pentad means,and showed a clear dependence on the season and *** was better consistency in winter than in summer,and in the tropical central-eastern Pacific than in the western Pacific warm pool,tropical North Indian Ocean,and tropical Atlantic *** monthly deviation of the global average SST anomaly was-0.03±0.07℃ and the average root-meansquare errors(RMSEs)presented clear seasonal fluctuations with a maximum of approximately 0.5℃ in *** poor consistency of the FY-3/VIRR SST in summer may be partially attributed to the bias of the OIv2.1 data in global oceans(especially the Indian Ocean)as a result of the spatially heterogeneous in situ measurements from ships,buoys,and Argo *** activities and clouds in the tropics may also influence the accuracy of the FY-3/VIRR SST *** Nino SST indices based on both FY-3/VIRR and OIv2.1 SST data displayed a generally similar evolution,including the start and end of El Nino and La Nina events and their amplitudes,although the deviations were slightly larger when the Pacific SST anomaly was in the neutral state of the El Nino-Southern Oscillation(ENSO).The deviations varied greatly with season in the tropical Indian and Atlantic oceans,suggesting the need to perform further analyses and validation of the FY-3/VIRR SST products in these two basins.

关键词： visible infrared radiometer(VIRR) Fengyun-3 satellites(FY-3) sea surface temperature(SST) El Ni?o–Southern Oscillation(ENSO) evaluation climate application

Precipitates Generation Mechanism and Surface Quality Improvement for Aluminum Alloy 6061 in Diamond Cutting

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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 150-159页

作者：王海龙 DENG Wenping 王素娟 State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006China Guangdong Provincial Key Laboratory of Micro-Nano Manufacturing Technology and Equipment School of Electromechanical EngineeringGuangdong University of TechnologyGuangzhou 510006China

To improve the surface quality for aluminum alloy 6061(Al6061) in ultra-precision machining, we investigated the factors affecting the surface finish in single point diamond turning(SPDT)by studying influence of the precipitates generation of Al6061 on surface integrity and surface *** on the Johnson-Mehl-Avrami solid phase transformation kinetics equation, theoretical and experimental studies were conducted to build the relationship between the aging condition and the type, size and number of the precipitates for Al6061. Diamond cutting experiments were conducted to machine Al6061 samples under different aging conditions. The experimental results show that, the protruding on the chip surface is mainly Mg_(2)Si and the scratches on the machined surface mostly come from the iron-containing phase(α-, β-AlFeSi).Moreover, the generated Mg_(2)Si and α-, β-AlFeSi affect the surface integrity and the diamond turned surface roughness. Especially, the achieved surface roughness in SPDT is consistent with the variation of the number of AlFeSi and Mg_(2)Si with the medium size(more than 1 μm and less than 2 μm) in Al6061.

关键词： Al6061 precipitates aging treatment diamond cutting surface roughness

Bitter Operation in Global Steel Industry

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China's Foreign Trade 2009年第4期 32-33页

作者： wang sujuan Senior analyst with Mysteel Research Institute

Shrinking international demand Global economy started to decline from the second half of *** with weak real estate market and dull automobile sales,steel industry fell into stagnant operation after six-year-straight rapid *** crude steel output decelerated *** steel mills worldwide such as Arcelor Mittal, Nippon Steel,USS and Severstal Steel had to slash outputs.

关键词：钢铁工业国际市场经济危机需求量

Cooperative Innovation in a Supply Chain with Different Market Power Structures

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American Journal of Operations Research 2016年第2期6卷 173-198页

作者： sujuan wang Fangfang Liu Institute of Management and Decision Shanxi University Taiyuan China School of Economics and Management Shanxi University Taiyuan China

This paper studies firms’ innovation behavior in a supply chain where two firms first invest to reduce component’ cost according to different innovation modes (non-cooperative innovation, sequential innovation, and cooperative innovation) and then decide the prices according to different market powers (Supplier-Stackelberg, Manufacturer-Stackelberg, and Nash). We find that both the supplier and the manufacturer make more innovation efforts and profits under sequential innovation than under non-cooperative innovation when the market power is any one of three structures. Moreover, the firm prefers to invest as the follower in sequential innovation. We also show that the firms are easy to achieve cooperative innovation under symmetrical power market structure than asymmetrical power market structure. By using a concept named innovation-desirability-index that measures a firm’s desire to innovate in the supply chain, we show that it is optimal for a firm in the chain to cooperate with such a firm whose market power is close to his own if the innovation-desirability-index is higher, otherwise with such a firm whose market power is lower to his own.

关键词： Supply Chain Innovation Mode Market Power Game Theory

Capability of Fengyun-3D Satellite in Earth System Observation

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Journal of Meteorological Research 2019年第6期33卷 1113-1130页

作者： Zhongdong YANG Peng ZHANG Songyan GU Xiuqin HU Shihao TANG Leiku YANG Na XU Zhaojun ZHEN Ling wang Qiong WU Fangli DOU Ruixia LIU Xiao WU Ling ZHU Liyang ZhANG sujuan wang Yueqiang SUN Weihua BAI National Satellite Meteorological Center China Meteorological AdministrationBeijing 100081 Henan Polytechnic University Jiaozuo 454000 National Space Science Center Chinese Academy of SciencesBeijing 100190

From the viewpoint of earth system science,this paper discusses the observation capability of the second-generation of Chinese polar-orbiting,sun-synchronous operational meteorological satellite observation systems,Fengyun-3(FY-3),based on the function and performance test results from the FY-3 D satellite observation system in *** FY-3 series of satellites have numerous remote sensing instruments and a wide range of imaging and sounding electromagnetic spectrometers *** instruments can obtain reflectivity data for land surface,soil,vegetation,water body,snow cover,ocean color,and sea ice on earth’s surface over a wide spectral range,as well as information on the absorption and scattering radiative transfer of molecules and particles(clouds and aerosols)in earth’s *** of these data can be used to retrieve physical and chemical information about the land,ocean,and atmosphere of the earth *** observation of the earth system by the FY-3 meteorological satellites is preliminarily realized.

关键词： Fengyun-3 meteorological satellites earth system observation advanced instruments remote sensing information products

3D Multi-Object Tracking Based on an Improved Binocular Stereo Matching Algorithm

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3D Multi-Object Tracking Based on an Improved Binocular Ster...

Effect of Citric Acid Solution Treatment on Textural Properties and Alkylation Activity of Zeolite Beta Catalyst

2022中国汽车工程学会年会暨展览会

作者： wang sujuan Fu Chunyun He Jiawei wang Xiyang College of Mechanical and Vehicle Engineering Chongqing University

In autonomous driving scenarios,stably tracking trajectories of surrounding vehicle objects in the 3 D world coordinate system is essential to realization of functions such as behavior prediction and path *** existing multi-object visual sensor-based tracking methods simply achieve tracking in a 2 D image coordinate system or pixel coordinate system,and have the problem of frequent ID *** tackle this problem,this paper presents a new multi-object tracking(MOT) method based on an improved binocular stereo matching algorithm,under a multi-layer data association *** introduction of appearance similarity,2 D IoU similarity and3 D coordinate similarity,this proposed MOT method effectively matches vehicle objects and trajectories progressively by means of the Hungarian *** to the experimental results,the MOT method presented in this paper has achieved object tracking in the3 D world coordinate system,effectively reduced the frequency of ID switch and provided high trajectory precision.

关键词：

来源： cnki会议评论

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催化学报 2003年第6期24卷 405-406页

作者： HE Shengbao, XIE sujuan, SHENG Wulin, wang Qingxia, XU Longya (Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China) Dalian Institute of Chemical Physics The Chinese Academy of Sciences 辽宁 Dalian 116023

Zeolite beta is a large-pore crystalline aluminosilicate, which was first synthesized by Wadlinger et al in 1967. Due to its peculiar framework topology and suitable acidity, zeolite beta has received increasing industrial interest for some important reactions such as alkylation of benzene with light olefins and alkylation of isobutane with butene. Many literature papers have reported methods to modify the acidity of zeolite beta, which include ion-exchange, hydrothermal treatment, and acid treatment. For example, Xie et al investigated the influence of a citric acid treatment on the surface acidity of zeolite beta and suggested a method for increasing the amount of acid sites on the surface of Hβ zeolite. But any change in the pore structure, which may be a key factor influencing reaction performance, of zeolite beta after the treatment by the citric acid solution was not investigated. In the present work, the effect of citric acid solution treatment on the textural properties of the zeolite beta catalyst is studied. A significant improvement in the catalytic alkylation of isobutane with butene was seen after the zeolite beta catalyst was treated in citric acid solution.

关键词： β-沸石催化剂柠檬酸结构性质烷基化氮等温吸附制备异丁烷丁烷

脑性瘫痪儿童运动功能与生存质量之间的相关性分析

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中国康复医学杂志 2016年第1期31卷 35-40页

作者：史惟王素娟复旦大学附属儿科医院康复中心上海200032

目的:分析4—12岁脑瘫儿童运动功能与生存质量之间的相关性。方法:以2014年4—6月期间在复旦大学附属儿科医院康复中心、上海市徐汇区华泾社区卫生服务中心儿童康复科、上海市闵行区江川社区卫生服务中心儿童康复科、上海市宝山区金惠... 详细信息

目的:分析4—12岁脑瘫儿童运动功能与生存质量之间的相关性。方法:以2014年4—6月期间在复旦大学附属儿科医院康复中心、上海市徐汇区华泾社区卫生服务中心儿童康复科、上海市闵行区江川社区卫生服务中心儿童康复科、上海市宝山区金惠康复医院和上海市浦东特殊教育学校接受康复干预的4—12岁的脑瘫儿童和家庭为研究对象,共90例脑瘫儿童和家长纳入研究,其中脑瘫儿童包括男性54例,女性36例,平均年龄(7.40±2.44)岁;4—7岁59例,8—12岁31例,采用中文版脑瘫儿童生存质量问卷(cerebral palsy quality of life,CPQOL)评价生存质量,采用中文版脑瘫粗大运动功能分级系统(gross motor function classification system,GMFCS)进行粗大运动功能分级。采用中文版脑瘫患儿手功能的分级系统(manual ability classification system,MACS)进行手功能分级,通过分析GMFCS、MACS与CPQOL各项分值之间的相关性明确脑瘫儿童运动功能与生存质量之间的关系。结果:GMFCS分级与7个CPQOL分区中的5个分区有着较弱的相关性,其中与社会福祉和受容度、功能、参与能力与躯体健康、情绪健康与自尊4个分区为负相关(r=-0.29—-0.38,P<0.05),表明GMFCS分级越高上述4个分区的分值就越低,也就是相关的生存质量就越低,此外GMFCS分级还与疼痛和残障的影响分区呈现较弱的正相关(r=0.28,P<0.05),表明GMFCS分级越高,脑瘫儿童受到疼痛和残障的影响就越明显。与GMFCS相比,MACS只有与CPQOL的社会福祉和受容度、功能两个分区呈现更弱的相关性(r=-0.27,P<0.01;r=-0.23,P<0.05)。与较小年龄脑瘫儿童(4—7岁)相比年龄较大脑瘫儿童(8—12岁)的GMFCS分级与CPQOL各分区的相关性更为明显。结论:粗大运动功能在一定程度上影响着脑瘫儿童的生存质量,与粗大运动功能相比手功能对生存质量的影响较小,较大年龄组脑瘫儿童的粗大运动功能与生存质量之间的关系更为密切。

关键词：脑瘫生存质量运动功能相关性

An efficient quantum proactive incremental learning algorithm

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 49-57页

作者： Lingxiao Li Jing Li Yanqi Song sujuan Qin Qiaoyan Wen Fei Gao State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications School of Cyberspace Security Beijing University of Posts and Telecommunications

In scenarios where a large amount of data needs to be learned, incremental learning can make full use of old knowledge, significantly reduce the computational cost of the overall learning process, and maintain high performance. In this paper, taking the MaxCut problem as our example, we introduce the idea of incremental learning into quantum computing, and propose a Quantum Proactive Incremental Learning algorithm(QPIL). Instead of a one-off training of quantum circuit, QPIL contains a multi-phase training on gradually-increased subgraphs of all vertices, proactively reducing large-scale problems to smaller ones to solve in steps, providing an efficient solution for MaxCut. Specifically, some vertices and corresponding edges are randomly selected for training to obtain optimized parameters of the quantum circuit at first. Then, in each incremental phase, the remaining vertices and corresponding edges are gradually added and the parameters obtained from the previous phase are reused in the parameter initialization of the current phase. We perform experiments on 120 different small-scale graphs, and it shows that QPIL performs superior to prevalent quantum and classical baselines in terms of approximation ratio(AR), time cost, anti-forgetting, and solving stability. In particular, QPIL's AR surpasses 20% of mainstream quantum baselines, and the time cost is less than 1/5 of them. The idea of QPIL is expected to inspire efficient and high-quality solutions in large-scale Max Cut and other combinatorial optimization problems.

关键词： variational quantum algorithm incremental learning multi-phase training MaxCut quantum computing